syrer is the feminine plural indefinite of syre.

syreN

Kven

1happoN

2(syregress)juomuN

Norwegian Bokmål – Kvendict-nob-fkv/src/N_nobfkv.xml:23777Edit on GitHub Suggest

suvriN

Norsk-nordsamisk ordbokdict-nob-sme/src/N_nobsme.xml:79704Edit on GitHub Suggest

Case	Sg	Pl
Indef	syre	syrer
Def	syren / syra	syrene